Maintenance of punch and die by die manufacturer

The mold manufacturer said that when assembling and disassembling the male and female molds, attention should be paid to the original conditions of the molds, so that they can be easily restored during later mold installation; If there is padding or moving, the thickness of the gasket shall be engraved on the parts and records shall be made.

To replace the punch, try to insert the stripper block die smoothly, and try to insert the gap with the die evenly; It is also necessary to test whether the clearance between the plug and the punch needle is symmetrical when replacing the die.

For the reduction of the punch after grinding the punch, the washer must be raised to achieve the required length, and check whether the reasonable length of the punch is sufficient. To replace the broken punch, find out the cause, and at the same time, check whether the corresponding die has broken edges and whether the knife edge must be ground.

When assembling the punch, check whether there is enough space between the punch and the fixed fixed block or between the plates. If there is steel cutting, check whether the theme activity capacity is reserved. The assembled female die shall be embedded horizontally, and the flat steel block shall be embedded into the surface of the female die continuously, and the aluminum rod shall be used to tap it in time. Do not drive it in with oblique super force, and the bottom of the female die shall be filleted. After installation, check whether the die face is flush with the die face.

After the assembly of the male die, female die and its core is completed, it is necessary to check whether the components are installed or installed reversely, whether the female die and the cushion block of the female die protective layer are installed reversely, whether the blanking hole is blocked, whether the newly replaced parts must steal materials, whether the stolen materials are sufficient, and whether the locking position of the mold must be locked.

Pay attention to confirm the locking of the stripper plate screws. When locking, it needs to be from the inside to the outside, with balanced force and cross locking. You cannot lock one screw first, and then lock another screw to prevent the stripper plate from being tilted, resulting in punch fracture or reduced mold precision.